Lawn-sprinkler



(No Model.)

D. D. BUICK.

LAWN SPRINKLER.

No. 397,775. Patented Feb. 12, 1889. g k

NY PETERS. Fhcloihhographen \Vashi nnnnnnn c.

UNITED STATES .PATENT OFFICE.

DAVID D. BUICK, OF DETROIT, BIICHIGAN.

LAWN SPRlNKLER.

SPECIFICATION forming part of Letters Patent No. 397,775, dated February 12, 1889.

Application filedMay 8, 1883. Serial No. 273,213. (No model.)

formed with the screw ll to receive the hosecoupling, and provided with a peg, B, to support. it. This portion of the invention is common and needs no particular description.

L represents a hollow plug adapted to lit in an opening, D, in the top of the body (l, p reterably screw-threaded, as'shown, and provided with a slot in its upper end, so that it can be turned into place by a screw-driver.

E represents a water-way formed in said plug L, and G represents a number of holes bored from the outside of said plug into said water-way It. thus Forming a number of small water-ways.

The upper part oi the plug L is flanged, as shown at F, and I usually make it conical.

A represents a corrugated cup, which I usually make of sheet metal, having through its center a hole a trifle larger than the threaded part of the plug L, so that when said plug is passed through this hole and screwed into the body 0 the bottom of the cup A is loosely held between the flange F and the body of the sprinkler, as shown in Fig. 1.

K represents corrugations formed in cup A, which are preferably at an angle with the Water-ways G, so that when said water-ways are bored radially through plug L the corrugations K are formed in a spiral, as shown in the drawings.

\Vhen the sprinkler is coupled onto a hose and the water turned therethrough, the streams issuing from the water-Ways G strike against the sides of the cup A, and acting on the spirals K cause the cup A to rotate rapidly, thereby breaking up the streams of water into drops and spreading the water in aconical and circular form.

\Vhat I claim as my invention, and desire to secure by Letters Patent, is

The combination, in a lawn-sprinkler, of a hollow body, 0, having a top opening, D, a rotary cup, A, open at its top and having the corrugations K and bearing on the hollow. 

